EP 2094743 A1 20090902 - POLYMER PRODUCTION AT SUPERCRITICAL CONDITIONS
Title (en)
POLYMER PRODUCTION AT SUPERCRITICAL CONDITIONS
Title (de)
POLYMERHERSTELLUNG UNTER SUPERKRITISCHEN BEDINGUNGEN
Title (fr)
PRODUCTION DE POLYMÈRE À DES CONDITIONS SUPERCRITIQUES
Publication
Application
Priority
- US 2007085348 W 20071121
- US 87619306 P 20061220
- US 71454607 A 20070306
Abstract (en)
[origin: US2008153997A1] This invention relates to a process to polymerize olefins comprising contacting, at a temperature of 60° C. or more and a pressure of at least 15 MPa, one or more olefin monomers having three or more carbon atoms, with: 1) a catalyst system comprising one or more activators and one or more nonmetallocene metal-centered, heteroaryl ligand catalyst compounds, where the metal is chosen from the Group 4, 5, 6, the lanthanide series, or the actinide series of the Periodic Table of the Elements, 2) optionally one or more comonomers, 3) optionally diluent or solvent, and 40 optionally solvent, wherein: a) the olefin monomers and any comonomers are present in the polymerization system at 40 weight % or more, b) the monomer having three or more carbon atoms is present at 80 wt % or more based upon the weight of all monomers and comonomers present in the feed, c) the polymerization occurs at a temperature above the solid-fluid phase transition temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system and less than 1500 MPa, in the event the solid-fluid phase transition temperature of the polymerization system cannot be determined then the polymerization occurs at a temperature above the fluid fluid phase transition temperature.
IPC 8 full level
C08F 2/06 (2006.01); C08F 4/62 (2006.01); C08F 10/06 (2006.01)
CPC (source: EP US)
C08F 10/06 (2013.01 - EP US); C08F 110/06 (2013.01 - EP US); C08F 210/06 (2013.01 - EP US); Y02P 20/54 (2015.11 - EP US)
Citation (search report)
See references of WO 2008079565A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2008153997 A1 20080626; EP 2094743 A1 20090902; JP 2010513683 A 20100430; WO 2008079565 A1 20080703; WO 2008079565 A8 20090827
DOCDB simple family (application)
US 71454607 A 20070306; EP 07868822 A 20071121; JP 2009543006 A 20071121; US 2007085348 W 20071121